About M5 Services

M5 Services is a commercial facilities services company based in Pleasanton, CA. We keep commercial buildings running for property managers, owners, and tenants across the Bay Area and Sacramento through five core services: Building Engineering, Facility Solutions, Special Projects, Janitorial, and Property Assessment. We're a tight, ~25-person team that values people who take ownership, communicate clearly, and take pride in a building that runs right.

The Role

As a Building Engineer, you are the hands-on technical presence at our clients' properties. You'll operate, maintain, troubleshoot, and repair the mechanical, electrical, and plumbing systems that keep commercial buildings safe and comfortable. Some days you're on a preventive maintenance route; other days you're diagnosing a rooftop unit that quit at 2 p.m. on the hottest day of the year. You'll work directly with property managers and tenants, so you're as much a relationship person as a technician.

What You'll Do

Operate and maintain building systems

• Perform scheduled preventive maintenance on HVAC (package units, split systems, VAV boxes, boilers, chillers, cooling towers), plumbing, electrical distribution, lighting, and life-safety equipment
• Monitor and adjust building automation / energy management systems (BAS/EMS) for comfort and efficiency
• Inspect and maintain roofs, drains, sump pumps, backflow devices, water heaters, and domestic water systems

Troubleshoot and repair

• Diagnose and repair mechanical, electrical, and plumbing failures; determine when a repair is in-house vs. when to escalate to a specialty subcontractor
• Respond to service calls and after-hours emergencies on a rotating on-call schedule
• Handle general building repairs: doors, hardware, drywall, ceiling tile, minor carpentry, and tenant improvement punch-list items

Document and communicate

• Log all work, parts, and time in BuildOps (our field service platform) the same day it's completed
• Communicate status clearly to property managers, tenants, and the M5 office; set expectations and follow through
• Maintain accurate equipment inventories, PM schedules, and inspection records for each property

Support the team

• Identify repair and improvement opportunities and pass leads to account managers for quoting
• Coordinate with vendors and subcontractors on-site; verify work is complete and to standard
• Uphold safety practices (lockout/tagout, PPE, confined space awareness, ladder/lift safety) on every job

What You Bring

Required

• 3+ years of commercial building engineering or stationary engineering experience (office, industrial, retail, or medical office)
• Working knowledge of commercial HVAC, electrical (up to 480V), and plumbing systems
• Ability to read mechanical/electrical drawings and equipment schematics
• EPA Section 608 Universal certification
• Valid California driver's license with a clean driving record
• Comfortable using a smartphone/tablet for work orders, photos, and time tracking
• Ability to lift 50 lbs, climb ladders, work on rooftops, and stand/walk for extended periods
• Strong customer service instincts — you can explain a problem to a property manager in plain English

Nice to Have

• Chief Engineer or Lead Engineer experience
• BOMI, IUOE, or trade school coursework
• Experience with BAS platforms (Trane, Johnson Controls, Honeywell, Siemens, or similar)
• Backflow tester certification, boiler/unfired pressure vessel experience, or generator/ATS familiarity
• Familiarity with BuildOps or another field service management platform
• Bilingual English/Spanish

Schedule

• Monday–Friday, typically 7:00 a.m. – 3:30 p.m.
• Rotating on-call for after-hours and weekend emergencies
• Travel between client properties in the Bay Area and Sacramento region (company vehicle or mileage reimbursement)

Compensation and Benefits

• Hourly pay depending on experience, with overtime eligibility
• Medical, dental, and vision coverage
• Paid time off and paid holidays
• Company vehicle or vehicle allowance, phone, and tools
• Paid training and certification reimbursement
• Growth path to Lead / Chief Engineer as our Building Engineering department expands